Flashcards Math

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=

1 (3 x 3 x 3 x 3 x 3)

Note: Negative powers basically mean “put a 1 over the same base raised to the positive power.”

1 35 =3x3x3x3x3

35

3(-5)

=

35

3(-5)

...cannot be divided into other numbers.

...is an INTEGER.

...is EVEN.

...is NEITHER POSITIVE NOR NEGATIVE.

the number “0”

Note: A set of numbers can have MORE THAN ONE mode.

The most frequently occurring number(s) in a set.

mode

mode

the number zero (“0”)

16 16 =1 Note: A base of “1” raised to any power equals “1.”

014

=0

Note: A base of “0” raised to any power EXCEPT FOR “0” equals “0.” 0 0 = “undefined”

Note: Any base raised to the power of “1” equals itself

=3

31

31

014

00 = “undefined”

Note: Any base EXCEPT FOR “0” raised to the power of “0” equals “1.”

=1

30

30

= -3 × -3 = 9 Note: A negative base raised to an EVEN power is POSITIVE.

(-3)3 = -3 × -3 × -3 = -27 Note: A negative base raised to an ODD power is NEGATIVE.

35 × 34

= 39

= 3(5+4)

= (3 × 3 × 3 × 3 × 3) × (3 × 3 × 3 × 3)

(-3)2

(-3)3

(-3)2

35 × 34

=

3 3 3 x x 4 4 4

3 ( )3 4

3 ( )3 4

5

DENOMINATOR of power

= 3

2

3

5

NUMERATOR of power

= 35y5

= (3 × 3 × 3 × 3 × 3) × (y × y × y × y × y)

= (3 × y) × (3 × y) × (3 × y) × (3 × y) × (3 × y)

(3y)

(3y)5 5

= 315

= (3 × 3 × 3 × 3 × 3) × (3 × 3 × 3 × 3 × 3) × (3 × 3 × 3 × 3 × 3) = 3(5×3)

(35)3

(35)3

32

5 2

= 31

= 3(5-4)

= (3 × 3 × 3 × 3 × 3) / (3 × 3 × 3 × 3)

35 34

35 34

Circumference = 2 π × (Radius) = 2πr

Area = π(Radius)2 = πr2

Side

Perimeter = Sum all 4 sides (4 × Side)

Area = Side × Side

Side

circle

Radius

square square

Length

Perimeter = Sum all 4 sides [(2 × Length) + (2 × Width)]

Area = Length × Width (or Base × Height)

Width

rectangle

rectangle

circle

SLOPE =

how much the x-value changes between the two points

rise y2 – y1 = run x 2 – x1

how much the y-value changes between the two points

slope

slope

All positive whole numbers, negative whole numbers, and zero. For example... { . . . –3, –2, –1, 0, 1, 2, 3 . . . }

An integer that divides evenly into another integer. For example... 1, 2, and 3 are factors of 6.

An integer that can be divided by a smaller integer with no remainder For example... 12 and 18 are multiples of 6.

For example... { 2, 3, 5, 7, 11, 13 . . . }

A positive integer with exactly two distinct factors: 1 and itself

integer

factor

multiple

prime number

factor

multiple

integer

prime number

Note: • Numbers must be IN ORDER. • In an even-numbered set, the median is the AVERAGE (mean) of the two middle numbers.

Average =

Sum of Things # of Things

average

median

The middle number in an ordered set.

average

(aritmetic mean)

median

The set of integers 1–5 exclusive = {2, 3, 4}.

The set of integers 1–5 inclusive = {1, 2, 3, 4, 5}.

inclusive/exclusive

x

x° x° x

To cut an angle or a line segment exactly in half

bisect

bisect

inclusive/ exclusive

x

x

x 3

30-60-90

60

x

45

x 2

2x

45-45-90

45

30

(x + y)2 = x2 + 2xy + y2 (x – y)2 = x2 – 2xy + y2 (x + y)(x – y) = x2 – y2

FOIL identities

special right triangles

1 x Base x Height 2 Perimeter = Sum all 3 sides

Area =

Base

Height

triangle

triangle

FOIL identities

special right triangles

equilateral

60°

60°

60°

All three angles the same measure (60°), all three sides the same length.

a

pythagorean theorem b

c

a2 + b2 = c2

pythagorean theorem

Difference Percent = x 100% Change Original

percent change

percent change

equilateral

The total number of degrees in a straight line is 180 degrees.

The sum of the angles in any triangle is 180 degrees.

the rule of 180°

the rule of 180°

isosceles

Two angles the same measure, two sides (opposite those angles) the same length. Combination =

nCr

Order DOES NOT matter.

combination

Probability =

Desired Outcomes Total Outcomes

probability

probability combination

isosceles

Distance = Rate x Time

rate

rate

Permutation =

nPr

Order DOES matter.

permutation

permutation